/
Jersey2ApplicationClientFactory.java
237 lines (201 loc) · 10.4 KB
/
Jersey2ApplicationClientFactory.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
/*
* Copyright 2015 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.netflix.discovery.shared.transport.jersey2;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.client.ClientRequestFilter;
import javax.ws.rs.core.Feature;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MultivaluedHashMap;
import javax.ws.rs.core.MultivaluedMap;
import java.io.FileInputStream;
import java.security.KeyStore;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import com.netflix.appinfo.AbstractEurekaIdentity;
import com.netflix.appinfo.EurekaAccept;
import com.netflix.appinfo.EurekaClientIdentity;
import com.netflix.appinfo.InstanceInfo;
import com.netflix.discovery.EurekaClientConfig;
import com.netflix.discovery.provider.DiscoveryJerseyProvider;
import com.netflix.discovery.shared.resolver.EurekaEndpoint;
import com.netflix.discovery.shared.transport.EurekaClientFactoryBuilder;
import com.netflix.discovery.shared.transport.EurekaHttpClient;
import com.netflix.discovery.shared.transport.TransportClientFactory;
import org.glassfish.jersey.client.ClientConfig;
import org.glassfish.jersey.client.ClientProperties;
import org.glassfish.jersey.client.JerseyClient;
import org.glassfish.jersey.message.GZipEncoder;
import static com.netflix.discovery.util.DiscoveryBuildInfo.buildVersion;
/**
* @author Tomasz Bak
*/
public class Jersey2ApplicationClientFactory implements TransportClientFactory {
public static final String HTTP_X_DISCOVERY_ALLOW_REDIRECT = "X-Discovery-AllowRedirect";
private static final String KEY_STORE_TYPE = "JKS";
private final Client jersey2Client;
private final MultivaluedMap<String, Object> additionalHeaders;
public Jersey2ApplicationClientFactory(Client jersey2Client, MultivaluedMap<String, Object> additionalHeaders) {
this.jersey2Client = jersey2Client;
this.additionalHeaders = additionalHeaders;
}
@Override
public EurekaHttpClient newClient(EurekaEndpoint endpoint) {
return new Jersey2ApplicationClient(jersey2Client, endpoint.getServiceUrl(), additionalHeaders);
}
@Override
public void shutdown() {
jersey2Client.close();
}
public static Jersey2ApplicationClientFactory create(EurekaClientConfig clientConfig,
Collection<ClientRequestFilter> additionalFilters,
InstanceInfo myInstanceInfo,
AbstractEurekaIdentity clientIdentity) {
return create(clientConfig, additionalFilters, myInstanceInfo, clientIdentity, Optional.empty(), Optional.empty());
}
public static Jersey2ApplicationClientFactory create(EurekaClientConfig clientConfig,
Collection<ClientRequestFilter> additionalFilters,
InstanceInfo myInstanceInfo,
AbstractEurekaIdentity clientIdentity,
Optional<SSLContext> sslContext,
Optional<HostnameVerifier> hostnameVerifier) {
Jersey2ApplicationClientFactoryBuilder clientBuilder = newBuilder();
clientBuilder.withAdditionalFilters(additionalFilters);
clientBuilder.withMyInstanceInfo(myInstanceInfo);
clientBuilder.withUserAgent("Java-EurekaClient");
clientBuilder.withClientConfig(clientConfig);
clientBuilder.withClientIdentity(clientIdentity);
sslContext.ifPresent(clientBuilder::withSSLContext);
hostnameVerifier.ifPresent(clientBuilder::withHostnameVerifier);
if ("true".equals(System.getProperty("com.netflix.eureka.shouldSSLConnectionsUseSystemSocketFactory"))) {
clientBuilder.withClientName("DiscoveryClient-HTTPClient-System").withSystemSSLConfiguration();
} else if (clientConfig.getProxyHost() != null && clientConfig.getProxyPort() != null) {
clientBuilder.withClientName("Proxy-DiscoveryClient-HTTPClient")
.withProxy(
clientConfig.getProxyHost(), Integer.parseInt(clientConfig.getProxyPort()),
clientConfig.getProxyUserName(), clientConfig.getProxyPassword());
} else {
clientBuilder.withClientName("DiscoveryClient-HTTPClient");
}
return clientBuilder.build();
}
public static Jersey2ApplicationClientFactoryBuilder newBuilder() {
return new Jersey2ApplicationClientFactoryBuilder();
}
public static class Jersey2ApplicationClientFactoryBuilder extends EurekaClientFactoryBuilder<Jersey2ApplicationClientFactory, Jersey2ApplicationClientFactoryBuilder> {
private List<Feature> features = new ArrayList<>();
private List<ClientRequestFilter> additionalFilters = new ArrayList<>();
public Jersey2ApplicationClientFactoryBuilder withFeature(Feature feature) {
features.add(feature);
return this;
}
Jersey2ApplicationClientFactoryBuilder withAdditionalFilters(Collection<ClientRequestFilter> additionalFilters) {
if (additionalFilters != null) {
this.additionalFilters.addAll(additionalFilters);
}
return this;
}
@Override
public Jersey2ApplicationClientFactory build() {
ClientBuilder clientBuilder = ClientBuilder.newBuilder();
ClientConfig clientConfig = new ClientConfig();
for (ClientRequestFilter filter : additionalFilters) {
clientConfig.register(filter);
}
for (Feature feature : features) {
clientConfig.register(feature);
}
addProviders(clientConfig);
addSSLConfiguration(clientBuilder);
addProxyConfiguration(clientConfig);
if (hostnameVerifier != null) {
clientBuilder.hostnameVerifier(hostnameVerifier);
}
// Common properties to all clients
final String fullUserAgentName = (userAgent == null ? clientName : userAgent) + "/v" + buildVersion();
clientBuilder.register(new ClientRequestFilter() { // Can we do it better, without filter?
@Override
public void filter(ClientRequestContext requestContext) {
requestContext.getHeaders().put(HttpHeaders.USER_AGENT, Collections.<Object>singletonList(fullUserAgentName));
}
});
clientConfig.property(ClientProperties.FOLLOW_REDIRECTS, allowRedirect);
clientConfig.property(ClientProperties.READ_TIMEOUT, readTimeout);
clientConfig.property(ClientProperties.CONNECT_TIMEOUT, connectionTimeout);
clientBuilder.withConfig(clientConfig);
// Add gzip content encoding support
clientBuilder.register(new GZipEncoder());
// always enable client identity headers
String ip = myInstanceInfo == null ? null : myInstanceInfo.getIPAddr();
final AbstractEurekaIdentity identity = clientIdentity == null ? new EurekaClientIdentity(ip) : clientIdentity;
clientBuilder.register(new Jersey2EurekaIdentityHeaderFilter(identity));
JerseyClient jersey2Client = (JerseyClient) clientBuilder.build();
MultivaluedMap<String, Object> additionalHeaders = new MultivaluedHashMap<>();
if (allowRedirect) {
additionalHeaders.add(HTTP_X_DISCOVERY_ALLOW_REDIRECT, "true");
}
if (EurekaAccept.compact == eurekaAccept) {
additionalHeaders.add(EurekaAccept.HTTP_X_EUREKA_ACCEPT, eurekaAccept.name());
}
return new Jersey2ApplicationClientFactory(jersey2Client, additionalHeaders);
}
private void addSSLConfiguration(ClientBuilder clientBuilder) {
try {
if (systemSSL) {
clientBuilder.sslContext(SSLContext.getDefault());
} else if (trustStoreFileName != null) {
KeyStore trustStore = KeyStore.getInstance(KEY_STORE_TYPE);
FileInputStream fin = new FileInputStream(trustStoreFileName);
trustStore.load(fin, trustStorePassword.toCharArray());
clientBuilder.trustStore(trustStore);
} else if (sslContext != null) {
clientBuilder.sslContext(sslContext);
}
} catch (Exception ex) {
throw new IllegalArgumentException("Cannot setup SSL for Jersey2 client", ex);
}
}
private void addProxyConfiguration(ClientConfig clientConfig) {
if (proxyHost != null) {
String proxyAddress = proxyHost;
if (proxyPort > 0) {
proxyAddress += ':' + proxyPort;
}
clientConfig.property(ClientProperties.PROXY_URI, proxyAddress);
if (proxyUserName != null) {
if (proxyPassword == null) {
throw new IllegalArgumentException("Proxy user name provided but not password");
}
clientConfig.property(ClientProperties.PROXY_USERNAME, proxyUserName);
clientConfig.property(ClientProperties.PROXY_PASSWORD, proxyPassword);
}
}
}
private void addProviders(ClientConfig clientConfig) {
DiscoveryJerseyProvider discoveryJerseyProvider = new DiscoveryJerseyProvider(encoderWrapper, decoderWrapper);
clientConfig.register(discoveryJerseyProvider);
// Disable json autodiscovery, since json (de)serialization is provided by DiscoveryJerseyProvider
clientConfig.property(ClientProperties.JSON_PROCESSING_FEATURE_DISABLE, Boolean.TRUE);
clientConfig.property(ClientProperties.MOXY_JSON_FEATURE_DISABLE, Boolean.TRUE);
}
}
}